@@ -667,6 +667,7 @@ struct intel_fbc {
*/
struct intel_fbc_state_cache {
struct i915_vma *vma;
+ unsigned long flags;
struct {
unsigned int mode_flags;
@@ -705,6 +706,7 @@ struct intel_fbc {
*/
struct intel_fbc_reg_params {
struct i915_vma *vma;
+ unsigned long flags;
struct {
enum pipe pipe;
@@ -183,7 +183,7 @@ static void g4x_fbc_activate(struct drm_i915_private *dev_priv)
else
dpfc_ctl |= DPFC_CTL_LIMIT_1X;
- if (params->vma->fence) {
+ if (params->flags & PLANE_HAS_FENCE) {
dpfc_ctl |= DPFC_CTL_FENCE_EN | params->vma->fence->id;
I915_WRITE(DPFC_FENCE_YOFF, params->crtc.fence_y_offset);
} else {
@@ -241,7 +241,7 @@ static void ilk_fbc_activate(struct drm_i915_private *dev_priv)
break;
}
- if (params->vma->fence) {
+ if (params->flags & PLANE_HAS_FENCE) {
dpfc_ctl |= DPFC_CTL_FENCE_EN;
if (IS_GEN5(dev_priv))
dpfc_ctl |= params->vma->fence->id;
@@ -324,7 +324,7 @@ static void gen7_fbc_activate(struct drm_i915_private *dev_priv)
break;
}
- if (params->vma->fence) {
+ if (params->flags & PLANE_HAS_FENCE) {
dpfc_ctl |= IVB_DPFC_CTL_FENCE_EN;
I915_WRITE(SNB_DPFC_CTL_SA,
SNB_CPU_FENCE_ENABLE |
@@ -753,6 +753,7 @@ static void intel_fbc_update_state_cache(struct intel_crtc *crtc,
struct drm_framebuffer *fb = plane_state->base.fb;
cache->vma = NULL;
+ cache->flags = 0;
cache->crtc.mode_flags = crtc_state->base.adjusted_mode.flags;
if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
@@ -778,6 +779,9 @@ static void intel_fbc_update_state_cache(struct intel_crtc *crtc,
cache->fb.stride = fb->pitches[0];
cache->vma = plane_state->vma;
+ cache->flags = plane_state->flags;
+ if (WARN_ON(cache->flags & PLANE_HAS_FENCE && !cache->vma->fence))
+ cache->flags &= ~PLANE_HAS_FENCE;
}
static bool intel_fbc_can_activate(struct intel_crtc *crtc)
@@ -816,7 +820,7 @@ static bool intel_fbc_can_activate(struct intel_crtc *crtc)
* so have no fence associated with it) due to aperture constaints
* at the time of pinning.
*/
- if (!cache->vma->fence) {
+ if (!(cache->flags & PLANE_HAS_FENCE)) {
fbc->no_fbc_reason = "framebuffer not tiled or fenced";
return false;
}
@@ -897,6 +901,7 @@ static void intel_fbc_get_reg_params(struct intel_crtc *crtc,
memset(params, 0, sizeof(*params));
params->vma = cache->vma;
+ params->flags = cache->flags;
params->crtc.pipe = crtc->pipe;
params->crtc.i9xx_plane = to_intel_plane(crtc->base.primary)->i9xx_plane;
Rather than trusting the cached value of plane_state->vma->fence to imply whether the plane_state itself holds a reference on the framebuffer's fence, use the information provided in the plane_state->flags (PLANE_HAS_FENCE). Note that we still assume that FBC is entirely bounded by the plane_state active life span; it's not clear if that is a safe assumption. Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> --- drivers/gpu/drm/i915/i915_drv.h | 2 ++ drivers/gpu/drm/i915/intel_fbc.c | 13 +++++++++---- 2 files changed, 11 insertions(+), 4 deletions(-)